Why God is called light

After I came back to Kolkata, my first job was to publish my first book in Bengali, showing that there was indeed a God. It was published in January, 2003. I gave the book for reviewing purpose to one Bengali daily newspaper and another to one Bengali literary magazine of very high repute. Review done in the newspaper was very brief, but it was not unfavorable to the book. But the review done in the literary magazine was very harsh and cruel. But the reviewer was dishonest, because he very scrupulously remained totally silent in his review about that particular portion of the book where I had given my reason as to why the mystical experience could not be discarded as a mere hallucination.